Who needs a search when you have members with long memories? Check out a review:www.cruffler.com/review-January-02.htmlThe fire control parts (i.e. trigger, hammer), bolt and magazines are interchangeable with the AR-15. The gas system is different, but that makes it easier to clean than the AR-15.

I've got a pre-ban AR180, and the gun flat rocks. The gas piston system means it stays a LOT cleaner than an AR15, and scope mounting is easy. Mine came with the original Armalite 3X that just locks to the wedge on the top of the receiver. I got a B-square mount for it and put a Reflex on, and it's fast and accurate. The only gripe I have is that I have to modify AR15 mags to fit. Easily done, but it costs money. Since this new version takes AR15 fire-control parts and mags without modification, it should be an excellent piece. Considering selling my preban M4gery and buying one of these.